In doing electrolysis, will the copper sulphate solution decolourise?

Chemistry

1 answer:

Elan Coil [88]3 years ago

8 0

Answer:

yea ......... ..........

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Lead(II) nitrate is added slowly to a solution that is 0.0800 M in Cl− ions. Calculate the concentration of Pb2+ ions (in mol /

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$[Pb^{2+}]=3.9 \times 10^{-2}M$

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Explanation:

$PbCl_2$ ⇄ $Pb^{2+}+2Cl^-$

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Ip>Ksp

Precipitation starts only when solution is supersaturated because solution become supersaturated then it does not stay in this form and precipitation starts itself only solution become saturated.

This usually happens when two solutions containing separate sources of cation and anion are mixed together and here also we are mixing lead (||)nitrate solution(source of lead(||)) into the Cl- solution.

$Ip=[Pb^{2}][2Cl^-]^2=Ksp$